what physical properties should you consider in choosing materials for building a flotation device in times of flooding?
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the material should be made of wood because wood floats on water
due to lower density.
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Physical properties should you consider in choosing materials for building a flotation device in times of flooding are:
- Wood should be used since it floats on water due to its lower density. Depending on its density, an object will either float or sink in another substance.
- An object will float if its density is lower than the liquid it is placed in.
- An object will sink if its weight is greater than the liquid it is submerged in.
- To trap air for floating, a thin, inflatable device like a rubber raft is the best option.
- A personal flotation device you select meets the following criteria: It is the right size and has adequate buoyancy to sustain you in the water; It is the suitable type for your boating location and activity.
- It received approval from the United States Coast Guard.
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